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Hi everyone,
As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.
When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.
Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.
Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.
Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.
Thanks for your patience and support!
All 2st Will Ossa be first to the EFI 2 stroke off road bike race?
- Thread starter Motosportz
- Start date
lankydoug
Husqvarna
Pro Class
You know this bike will be a blast to goof around on + ride in new trails or places with no trails at all. I want one so I better start rat holing cash.
Seems like a perfect fit. FUN
Norman Foley
Husqvarna
Pro Class
Norman Foley
Husqvarna
Pro Class
If you end up getting one from Mike and come up to NY, he's close to me (I get all my Fantic parts from him.). I'll take you riding.
speedkills
Husqvarna
A Class
Is this a joke or are you serious?
Vinduro
Husqvarna
Pro Class
"Direct injection is designed for ultra low emissions and moderate power, not for the performance industry. They are very finicky and costly to service."
http://twostrokemotocross.com/2011/09/ditching-your-two-strokes-carb-for-port-fuel-injection/
fran...k.
Husqvarna
AA Class
Notice how comment 3 brings up the skidoo/rotax in production and apparently successful system not addressed in the article. Notice comment 4 pertains to sloppy editing. Notice comment 8 is essentially the author responding to comment 4 and ignoring comment 3.
The above link pertains to the title of this thread and thanks for posting. Maybe I will read more of the comments as the author (product creator) keeps adding stuff in subsequent comments.
The title of this thread is efi not di. Even this efi systen doesn't yet have a dealer network to sell it just a price.
Vinduro
Husqvarna
Pro Class
lankydoug
Husqvarna
Pro Class
You need to ride a Skidoo before you get too "dead serious" in your thinking that DI is not high performance. Also to say that DI is designed for emissions only is not accurate, while it is great for emissions because it can more accurately deliver fuel, it can also be turned up to deliver as much fuel as you want in practically any ratio you want. I understand some not wanting the complexity but engine efficiency translates in to more horsepower and FI and DI can deliver fuel more accurately and efficiently than a carburetor. That said, I'll be keeping my carbureted bike until these are all sorted out.
Based on what Kris said at the NW gathering ALL the manufacturers are scrambling to make DFI work well on high pro engines. It does not sound like a slam dunk and is all driven by the 2015 Euro regs. They sell piles of 125 and under 2 strokes that now have to meet tough emissions. It is do or die for a HUGE market. It might be EZer to make it happen on a 700cc twin but might not be so EZ on a 125 single. In the end it will add a lot of complexity and cost as computers, fuel pumps and high pressure injectors are in the mix. the simplicity of the 2 stroke will be gone. Hopefully we get performance and efficiency with the package. Should be interesting.
wallybean
Mini-Sponsor
Simplicity is a relative term. A DI 2-stroke will still be lightyears simpler, more reliable, and have a higher power to weight ratio than any 4-stroke. We could be witnessing a new chapter in motorcycling!
Slowpoke
Husqvarna
AA Class
I believe it's important to note the distinction between the Orbital DI system which was referenced in the article (which is very inflexible & limited) and the BRP/Rotax sytem which is much better for performance 2ts (and has been serving Skidoo well for over 5yrs). The BRP system will work at much higher RPM than the Orbital design.
As I've mentioned before, a simple batteryless EFI system would be a great step forward for 2t dirtbikes. It will clean them up substantially & make them more efficient. The technology has been around for at least 17 years, so it's not like it needs to be complicated, expensive groundbreaking technology. It shouldn't add more than $100 to the cost of a production dirtbike.
The OSSA looks like they're headed in the right direction on paper. Let's see how it actually works long term in the real world with the typical hack rider.